peckeam



4 M A V -v G E P H ELECTRIC UAR MOTOR.

' Patented Apr. 15, 1890.

WITNESSES:

INVENTUH MW ATTUR N EY.

4 M A H K C E D B ELECTRIC GAR MOTOR. No. 425,627.

Patented Apr; 15, 1890.

.imllllliiillllllumv IEIIIIIII 5Q INVENTORI WITNESSES:

ATTORNEY.

Y "cums vzrzns co., mumumm, msmnuwu a c (No Model.) 4 Sheets-Sheet 3.

E. PEOKHAM. ELEOTRIG'GAR MOTOR.

No. 425,627. Patented A ryls, 18.90.

WITNESSES:

INVENTORI WM Mug/M (No Model.) I 4 Sheets-Sheet 4.

E. PEGKHAM. BLBGTRIGYGAR MOTOR.

No@ 425,627. Patented Apr. 15,.1890.

Fug. 8.9

; ASHKNETDN, n. c

UNITED STATES PATENT OFFICE.

EDGAR PEOKHAM, OF NEW YORK, N.

ELECTRIC CAR-MOTO R.

SPECIFICATION forming part of Letters Patent No. 425,627, dated April15, 1890.

Application filed December 2 1889. Serial No. 332,195. (No model.)

To all whom, it may concerm.

Be it known that I, EDGAR PECKHAM, a citizen of the United States, and aresident of New York, in the county of New York and State of New York,have invented certain new and useful Improvements in ElectricCar-Motors, of which the following is a specification.

My present invention relates to electric carmotors, and to the manner ofsupporting the same on themotor-frame mounted on the truck.

The objects of the invention are to improve the construction of the coreof the electromagnet, whereby the efficiency of said electromagnet isincreased; to render the armatureshaft self-lubricating; to so connectthe motorsupporting frame to the truck-frame as to secure a flexibleconnection between the two structures, whereby torsional strain isprevented when the car is traveling on a curve, and the motor and itsgearing consequently relieved from liability of displacement or injury;to so mount the electromotor on its supporting-frame as to bring itsweight more nearly in the longitudinal center of the truck, which alsoavoids the crowding of the motor proper with its gearing andcounter-shaft.

In my organization I depart from the usual mode of supporting the armattire-shaft, which consists in connecting one end only of said shaft tothe side frame of the truck and gearing its opposite unsupported endwith one end of the counter-shaft, while the opposite end of the lattershaft is geared to the axle of the drive-wheels. I support both ends ofthe armature-shaft in bearings on the motor-frame and gear said shaftnear both of its ends, at each side of the .motor, to the counter-shaft,and gear said counter-shaft centrally, or midway between the side barsof the motor-supporting frame, to the axle of the drive-wheel, insteadof connecting the counter-shaft to said axle at one end only. By thisdisposition of the parts I am enabled to produce a stable organization,not liable to derangement by the vibrations of the motor and truck, andalso toinsureregularity of movement of the mechanism.

My invention will now be described, and the features of novelty pointedout in the claims at the end of this description.

In the accompanying drawings, which form part of this specification, andwherein like features are indicated by like letters of reference in theseveral views, Figure 1 is a top plan View of a truck upon which ismounted my electromotor and its accessories. Fig. 2 is a side elevationof Fig. 1. Fig. 3 is a vertical longitudinal section on the line ocofFig. 1. Fig. 4 is a transverse section on the line y y of Fig. 1. Fig. 5is asimilar view on the line 2 z of Fig. 1. Fig. 6 is aside view of thecore of the electro-magnet. Fig. 7 is an end view of said core. Figs. 8,8*, and 8 are detail views showing modifications in the manner offlexibly connecting the rear end of the motorsupporting frame with theaxle of the drivewheel. Fig. 9 is a longitudinal sectional View throughthe line 1; 12 ofl, and Fig. 10 is alongitudinal scctionalview centrallythrough the chambered armature-shaft.

Referring to the drawings, A A indicate the axles of the truck; B B, thedrive-wheels mounted on said axles, and O the truclcframe, supported onthe axlesof the truck, as shown in the drawings or in anyother suitablemanner. v

D D indicate two longitudinal beams supported in bearingscc on the axleAinside the drive-wheels, and connected to' a transverse beam 1, securedto truck-frame G at a point sufficiently removed from the axle A topermit the electromotor and its gearing to be placed in position byhangers h, as shown in Fig. 5, and having their front ends curved andjoined together, as seen in Fig. 1. To the curved front of the framethus formed there is bolted the beam D ,preferably round incross-section, which projects forward and is supported on the enlargedsurface of box D which box is bolted to axle A. The 'object in makingthe top surface of box D of considerable width transversely is to afforda sufficient bearing for the swinging end of beam D when themotor-supporting'frameD D is being subjected to torsional strain.

WVhile the box D is fixed to axle A it is flexibly connected to beam D,so that the motorsupporting frame is practically swung on a pivot at itsrear end, and said frame is thus permitted to partake of the vibratoryand oscillatory motions of the truck when the latter Several modes offlexibly is being propelled.

to the box I) are connecting the beam D shown in the drawings.

In Fig. .8 the short bar D has one, of its ends pivoted between theforward jaws of box D by bolt (1, and its other end secured to the beamD by bolt d In Figs. 8 and 8 the short bar D is similarly connected tothe box D In Fig. 8 the other end of said bar is supplied with a stirrup(1 passing through the bar and swung on a rod fixed transversely in thebeam D. In Fig. 8 the outer end of bar D is provided with a horizontalbolt d w iich coacts with ametal piece dihaving an eye through which thebolt d passes, and which is prevented from being withdrawn therefrom bya nut screwed onto said bolt. By any one of these forms of connection Iobtain the necessary lateral flexibility for the rear end of themotor-supporting frame.

Theletter e indicates the armature-shaft, a longitudinal section ofwhich-is shown in Fig. 10. H This shaft is solid intermediate of itsjournals to give strength; butits journals are chambered or bored out,as shown in Fig.

10, to receive a lubricant. The hollow. jour-.

nals are provided with ports or perforations e, through which thelubricant is conveyed to the outside surface or hearing, and the ends ofthe journals are fitted with screw-plugs e The lubricant is supplied tothe chambers of the. shaft by removing the screw-plugs e 'lheshaft isthus rendered self-oiling and itselficiency in the organization muchincreased. The shaft 6 is journaled in boxes secured to the-beams D D,and has fastened near its ends the pinions P P, as shown.

The electro-magnet is represented by F,

and it is somounted upon its supportingframe DD as to bring itpractically in the center of the truck-frame, longitudinally andtransversely. The advantage of this arrangement is that the weight ofthemotor is more equallydistributed over the truck-fram e, with-theeffect of more nearly balancing the organization than is done in theforms of construction heretofore devised. To enable me to obtain thisresult, the heel of the magnet, to which tail-piece p is attached,instead of being sustained in front of the armatureshaft in closeproximity to the counter-shaft, as is usual, is sustained at the rear ofthe armature-shaft or on that side thereof opposite the counter-shaft,the heel of the magnet being. supported vertically and yieldingly bymeans of arod z", suspended from the crossbeam I and passing through aneye in the tail-piecep, attached to the heel of the magnet, as stated.The bottom and protruding end of the rod iis provided with either a heador a-nut, with a washer upon it to serve as a seat for a spring 8, uponthe topof which the tail-piece p rests. Another spring 8 is in-,

terposedbetween the top of said .tail-piece and the under side .ofthecross-beam I, and

thus the heel of the magnet is supported be tween two springs disposedvertically, one over the other. By sustaining the heel of the magnet inthe position indicated the space between the armatnrcshaft and drivenwheel A is not unduly crowded, so that the counter- Between thearmature-shaft e and the driven axle A, I arrange the counter-shaft fwith its ends supported in boxes on the beams D D, and havinggear-wheels g g fixed near its ends, which mesh with the pinions PP, asseen in the drawings. centrally enlarged circumferentially, as at Z,

in order to re-enforee and stiffen the same,

and upon this enlarged portion there is mounted the pinion O, whichmeshes with a The counter-shaft f is 2 gear-wheel O, secured to,thedriven axle A, I

which is also circumferentially enlarged at Z,

similar to counter-shaft f. I

By the above-described manner of mounting the motor on itssupporting-frame, by

which the heel of the. magnet extends away.

from instead of toward thecounter-shaft and driven axle A, I am enabledto enlarge the several partscomprising the motor, so as to better adaptasingle ,motor for driving the car, the motor-supporting frame inthepresent organization beingparticularly designed for cars to be equippedwith but one motor.

The core of the magnetF I, form of two sets of longitudinal plates 'orbars a a, the plates at being longer than plates (1., as indicated inFig. 1, in which a top .plan View of the mag net audits core isseen.These plates are placed side by side,first a plate a and thena IOD platea, and alternate in this manner until,.

the required number of plates havebeen grouped together to form a coreof there: quired thickness. These longitudinal plates. are united attheir heelends by two sets of cross-bars b b. The bars bare not so longas'bars b, and the latter are placed between the longitudinal bars a,orlso as to abut with their edges against theends of the intermediateshorter longitudinal (bar a, while the IIO shorter bars I) areso placed.that their ends abut against the inner. surfaces of longitudinal bars a,asseen inFig. 7. Thecross bars I) b are thus interlocked with thelongitudinal bars a a, and transversely through the interlockingportions of the several bars pass tie-bolts 2ft, which, in. connectionwith other tie bolts 2." 25, passing transversely through the severallongitudinal bars, firmly unite the entire structure together. Tothepole ends of the said longitudinal bars there is rigidly secured anon-magnetic tie-plate L. The core is thus built up in sections, whichmode of construction has its advantages in the facilitywith which thequality of metal is selected and the metal prepared for the structure. I

The magnet is sustained in proper position with reference to thearmature-shaft by means of yoke 11, mountediin hearings on said shaftnear its ends and encompassing the magnet transversely. The set-screwsoo pass vertically through the topand bottom rails of said yoke and bearagainst the magnet, as

shown in Fig. +1, thus holding the yoke firmly in place.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The core of an electro-magnet, consist-ing of two sets oflongitudinal bars, one set of greater length than the other, a series ofconnecting cross-plates of two lengths uniting the heel ends of saidlongitudinal bars together, and a non-magnetic plate rigidly securingtogether the pole ends of the longitudinal bars, substantially as setforth.

2. The core of an electro-magnet, consisting of two sets of longitudinalbars, as a a, arranged side by side, the bars a being of greater lengththan the bars a, whereby the ends of the former extend beyond the endsof bars a, and two sets of cross-bars, as Z) Z), of different lengths,the bars of greater length Z) located between the projecting ends oflongitudinal bars a, and the intervening shorter bars I) having theirends abutting against the inner surfaces of the longer longitudinal barsa, the whole united together substantially as set forth.

3. In an electric-motor truck, the combination, with asupporting-frame,of an armatureshaft solid intermediate of its journals, which latter arechambered or bored out and perforated, as at e, substantially as setforth.

4:. An armature-shaft constructed with a solid center and withlubricating-chambers at its ends, which are provided with ports oropenings for conveying the lubricant to the bearings, and screw-threadedplugs for closing the ends of the chambers, substantially as set forth.

5. In an electric-motor truck, the combination, with a motor-supportingframe, of an electromotor having the heel end of its magnet said frameand having its heel end suspended by a flexible joint from beam I, whichbeam is arranged in rear of or that side of the armature-shaft oppositethe counter-shaft, substantially as set forth.

'7. In an electric-motor truclga motor-supporting frame sustained at oneend on one of the driving-axles and flexibly connected at its oppositeend to the other driving-axle,in combinat-ion with a transverse beambolted to the truck-frame proper intermediate of the drive. ing-axlesand sustaining one end of the motor independent of the motor-supportingframe, substantially as set forth.

8. In an electricmotor truck, a motor-supporting frame journaled at oneend on one of the driving-axles and sustained at its opposite end on theother driving-axle by a flexible connection, in combination with atransverse bar intermediate of the driving-axles and bolted to thetruck-frame and connected to the motorsupporting frame by hangers,substantially as set forth.

9. In an electric-motor truck, the combination, with a motor-supportingframe j ournaled at one end on one of the driving-axles and providedcentrally at its opposite unbroken end with a beam, as D ,of a boxbolted to the opposite driving-axle and co-operatin-g with theunconfined extremity of said beam D, substantially as set forth.

10. In an electric-motor truck, a motor-supporting'frame journaled atone end. 011 the driving-axle and provided at its opposite end with ahorizontally-projecting beam, and a box, as D having a flat top surfaceand bolted to the opposite driving-axle and sustaining the end of saidprojecting beam,whieh is also flexibly connected thereto, substantiallyas vset forth.

Signed at New York, in the county of New York and State of New York,this 22d day of November, A. D. 1889.

EDGAR PECK HAM.

Witnesses:

J. E. M. BOWEN, W. E. BOWEN.

